Thanks for replying so quickly! It was when I got the inventory prompt in the apartment. It's possible that's what happened. Reinstalling the game seemed to take care of it though - I haven't encountered a missing "exit inventory" button since doing that. Thanks again for a great, entertaining game! I love that there are so many branches for the story to take.
As a btw, this should be fixed now (no exit inventory button after several replays). The reason is because **SPOILERS** after about 5 replays, Alice has wisened up to her dream and decides to (in the future...you know how it is) BUY A CROWBAR. Very useful ;) Point is though that this added item pushed the exit inventory button 'off the screen' so to speak, but it should be fixed now!